Aliphatic

Glycine (H) 
Alanine (CH3) 
Valine (CH(CH3)-CH3) 
Leucine (CH2-CH(CH3)-CH3) 
Isoleucine (CH(CH3)-CH2-CH3)
Aromatic

Tyrosine (CH2-Ph(OH)) 
Phenylalanine (CH2-Ph) 
Tryptophan (CH2-Arom) 
Histidine (CH2-Arom) 
 
Alcohol/thiol

Serine (CH2-OH) 
Threonine (CH(OH)-CH3) 
Cysteine (CH2-SH) 
Methionine (CH2-CH2-S-CH3)
Acid/Amide

Aspartic Acid (CH2-CO2H) 
Glutamic Acid (CH2-CH2-CO2H) 
Asparagine (CH2-CO2NH2) 
Glutamine (CH2-CH2-CO2NH2)
Amine

Proline (CH2-CH2-CH2-) 
Lysine (CH2-CH2-CH2-CH2-NH2) 
Arginine (CH2-CH2-CH2-NH-C(NH)-NH2)
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